Solve the problem.A coin is tossed upward from a balcony  high with an initial velocity of  During what interval of time will the coin be at a height of at least (h = -16t2 + v0t + h0.)

A. 2 ? t ? 3
B. 0 ? t ? 3
C. 3 ? t ? 6
D. 0 ? t ? 1


Answer: B

Mathematics

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You can get the change in a linear function from the formula Change in function = Slope × Change in variable.

Answer the following statement true (T) or false (F)

Mathematics

Solve the system using matrices.5x - 2y = -1 x + 4y = 35

A. (3, 9) B. (2, 8) C. (3, 8) D. (2, 9)

Mathematics

Determine whether the specified paradox occurs.A city has 204 police officers to be apportioned among 4 precincts based on the population of each precinct. The populations are given in the following table. Does the Alabama paradox occur using Hamilton's method if the number of police officers is increased from 204 to 205?

A. Yes B. No

Mathematics

Solve the problem.A psychologist studying the effects of good nutrition on the behavior of rabbits feeds one group a combination of three foods, I, II, and III. Each of these foods contains three additives, A, B, and C, that are used in the study. The table below gives the percent of each additive that is present in each food. If the diet being used requires 19.1 g per day of A, 8.94 g of B, and 14.02 g of C, find the number of grams of food II that should be used each day. Let z represent the number of grams of food III.

A. 2.1z + 63 B. 128 - 3.2z C. 2.7z - 60 D. 1.8z + 54

Mathematics